Machine for grinding and crushing



Apr. 10, 1923.

G. H. FRASER MACHINE FOR GRINDING AND CRUSHING ori inal Filed Mar. 51,19;? 5 sheets-sheet 1 w .H HH. H l

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Apr. 10, 1923.

' G. H. FRASER MACHINE FOR GRINDING AND CRUSHING Original Filed Mar. 31,'1917 is-sheets-sheeu 2 WITNESSES:

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Apr. 10, 1923.

G. H. FRASER MACHINE FOR GRINDING AND CRUSHING Original F1. led Mar.

5 sheets-sheet 5 INVENTOR Patented Apr. 10, 1923, I i

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GEORGE nv FRASER, or BROOKLYN, ivniv szoiaiz. a l i MACHINE FOR GRINDINGAnn oRUsHrNG. I

Application filed March 31, 1917, Serial No. 158,828. Renewed August 9,1922. Serial No. 580,803.

T allwhomz't may concern: parts of the machine, all of which will be Beit known that LGEoRcn H. Fnasnn, a more fullyset forth with reference tothe 55 citizen of the United States, residing in the accompanyingdrawings, in which,'

borough of Brooklyn, county of Kings, city Fig. 1 is a side elevation,partly in vertical and State of New York, have invented ceraxialmid-section, of a crusher. constructed tain new and useful Improvementsin Maaccording to the preferred form of my inchines for Grinding andCrushing, being a vention; I, Y refiling of my application Serial No.802,071, Fig. 2 is a plan viewthereo'f partly in filed Nov. 20, 1913, ofwhich the following horizontal axial mid-section; f t

is a specification. 1 lg. 3 is a front elevation thereof partly Thisinvention relates to machinery for in section through the axis of thecrusher crushing, grinding or pulverizing materials, springs, the doorbeing open to show the in- 65 and aims to provide certainimprovementsterior; and v therein. Fig. 4: is a rear elevation thereof partly Theinvention relates more particularly to in section through the axis ofthe rear rock crushers of the type having a plurality bearing. y f ofcrushing rolls within an annular die in Referring to the drawings,, letAIindi- 70 which the crushing is effected between the cate a frame, Bthe ring or die, C the rolls, periphery of the rolls and the inner faceof D their shafts or axles-E the roll-( carriers the die. Examples ofthis type of crusher or bearings, S the crushing springs, and d are wellknown in which the die revolves the adjusting screw. I a and is held inposition yieldingly by the In the type of machine shown'the ring 75rolls which support it, or rigidly by a shaft revolves at sufficientspeed to causethe masupported in bearings and connectedto the terial tobe crushed to be held on the con:

die by a head or spider, the rolls being cave inner crushing face of thering by cenpressed outwardly by springs to resist a trifugal force, andthe rolls are rotatively crushing pressure from the inner face of theheld and are pressed against this face by 80 die. and being movableradially thereof to the crushing springs to crush the material yield toadapt themselves to the work. between them. The crushed material is Whenthe die is supported by the rolls, forced over the edges of the ring andfalls means are generally provided for driving through the outlet a inthe base. When the one of the rolls, which drives the die and ring is ofthe driven type here shown. it is the other rolls by traction. When thedie carried by a cup-shaped head or spider G is the driven member, allof the rolls are mounted on a shaft H carried from supports 35 driven bytraction; V on the base A, and driven in any suitable My presentinvention'aims to provide an manner, as'by a pulley J connected by aimproved crusher or pulverizer especially friction clutch K to drive acounter-shaft L applicable to the type in which the die is which drivesthe shaft! H through spur the driven member, but includes variousfeagears M. r i i tures of improvement which can be em- Power applied torevolve the ring causes ployed in other types of crushers. the rolls torevolve by traction, and the mov- To this end in carrying out my presentable roll carriers'permit the rolls to move invention in its preferredform, I provide inwardly to adapt themselves to the crushan improvedarrangement of die and rolls, ing operation. Material is fed on to the45 improved means for carrying the rolls, imdescending side of the ringin front of one proved means for guiding them, improved of the lowerrolls through a feed hopper N means for transmitting all or part of theand chute O, and revolves with the ring 10 crushing thrust from one rollto another, until crushed sufficiently'to flow over its improved meansfor holding the die, imsides. The ring and rolls are enclosed in a 50proved means for controlling the size of crushing chamber inthe casingP.

material discharged from the crusher, and According to'one'featur'eofthis invention various details of improvement in the con- I provide forsupporting the driven die movstruction and arrangement of the severalably and yieldingl ygso that it is cushioned parts being so constructedand connected that the bearing yoke or frame Q can swing upwardly orlaterally, but will be caused to move in parallelism with the axes ofthe rolls by the action of the guiding frame T. The yoke Q has widelyseparated bearings U for the shaft H, one near the head G andthe othernear the rear endof the shaft, and an intermediate connection Z) rigidlyjoining these bearings. From the bearings the yoke has horizontallyextending arms a and e which are fulcrumed to the upwardly projeetingarms f of the yoke T, so that the yoke Q can oscillate vertically. Theyoke T has a tubular barrel or body 9 rigidly connecting its arms 7 andfulcrumed by a shaft II, to the standards or supports V carried on theframe or base A, so that its arms can swing horizontally to permithorizontal movement of the shaft H. Tlhe yoke Q is preferablyconstructed with a pocket or casingz'enclosing the gears M and formingpart of its rear arm e, by which it is connected to the pivotal shaft Rat one side and to the pulley shaftL at the other side vof the bearings.The arm 0 is preferably duplicated on the yoke, so that at one side itmay serve as one bearing for the shaft L and on the other side forpivotally connecting the yoke to the rocker T, the constructionbeingvsuch that the rocker may be at either side and the countershaft atthe other side as desired.

In effect, the yoke Q is a rigid casting ca 1'- rying bearings for thering shaft, the

countershaft and rocker connection, and movably to permit the movementin any direction at right angles to the axis of the die, so that thelatter may move but will be preserved in parallelism with the rolls.

In the type of machine in which the die is not supported by the rolls, Iprefer to support the die by this yoke yieldingly in suspension againstthe action of cushioning springs or other suitable provisions. As shown,this is accomplished by poising the yoke on a plurality of springscarried by the supports V and reacting against-the bearing ends of theyoke Q; in various directions, preferably in opposition to thedirections of action of the several rolls. Preferably each bearingisvertically supported yieldingly by a spring XV seated in a pocket in thesupport, reacting upwardly against the bearing to carry its weight,which spring is yield inglyresisted by a :RGVQISQ spring Xibeueath theyoke reacting downwardly on a bolt engaging the yoke and serving,through the medium of an adjustable nut 70, to draw the two springstogether until the vertical position desired for the shaft H has been attained, whereupon the yoke is held yieldingly in this position againstrising or falling except to momentarily cushion a shock.

Horizontal positioning of the yoke is effected preferably by laterallyacting springs Y carried by the supports V at each side of the yokebearing, and reacting against the latter laterally and preferably inopposition. to the action of the corresponding crushing roll to resisthorizontal swing of the yoke, the springs Y being confined by bolts Zand adjustable nuts on to limit their expansion beyond the pointat whichthe yoke is held-in the desired lateral position. i

' The springs are duplicated at eachend of the yoke so that the latteris poised and cushioned in its normal position, but may move or vibratesufficiently to-avoid breakage incident to shocks and crushing, and maybe adjusted vertically to vary the position of the ring relatively tothe rolls, or to throw more or less of the weight of the ring on to therolls when it is desired that these shall partially support the ring. 7This vertical adj-usta'bility of the ring may be increased to any rangedesired, and utilized as a crushing force or to take up wear.

According to another feature of improvement the crushing rolls aremovably mounted, preferably .to swing on axes inwardly of theinnercrushing face of the ring and parallel with the axis thereof, andtwo of the rolls are mounted in substantially the same horizontal planeon an axis or axes intermediate of their axes of rotation, so that theircarriers incline outwardly from a fixed point of support as seen in Fig.3, and a third roll is movably mounted above them, and thrust provisionsintermediate of the rolls are provided which react against the twohorizontal rolls with a pressure that countervailing against each, andthe reaction of the third roll is transmitted to the roll tends toseparate the lower rolls, and this tendency is resisted by the innerface of the ring, more or less of the weight of which is carried by theupper roll, transmit ted through the lower rolls, and resisted by theintermediate point of'pivotal support of the'lat'ter. The divergentswinging carriers of the lower rolls, and the divergently actingintermediate thrust members between these and the upper roll, serve toresista crushing pressure from the inner face of the ring when the ringis supported independently of the rolls, or to resist this and theweight of the ring when the ring is so adjusted or supported that itsweight is carried by the rolls, either partially as in the constructionshown, or wholly as when the cushioning springs are adjusted out ofengagement with it.

This may be accomplished -in various ways, the two supporting rollsbeing suitably mounted with their axes in approximately the samehorizontal plane, and'so that one orboth shall be held outwardly toresist a crushing pressure from the inner face of the ring and transmitit to the other roll, and both shall be capable of wholly or partiallysupporting the ring when this'is vertically movable, and of positioningit horizontally when it ishorizontally movable. 1

I prefer to pivotally or swingingly mount two rolls so that their axesare in approximately the same horizontal place below the normal axis ofthe'ring, and their carriers are movable to swing them approximatelyhorizontally radially of the ring, and to provide a yielding thrustmember intermediate of the carriers for movably holding the rolls apartand toward the inner face of the ring, and to provide a third rollmovably mounted and engaging the inner face of the ring near the upperpart thereof, and held thereagainst by a thrust member actingexpansively against the two lower rolls to hold them outwardly under theweight of the ring. As shown, all of the rolls C are rotatably mountedon swinging carriers E pivotally carried by a support Z which is asshown in Fig. 3, removably fixed or mounted on the frame A, by bolts 1so that on removing one of these bolts the support can be movedpivotally on the other boltand has tubular or horizontal projections ithaving pivotal provisions for shafts or pins 0 which project through theinterior of the ring and pivotally support the carriers E on each sideof the rolls. One pin 0 is preferably used for the lower carriers ofboth the lower rolls, and disposed centrally intermediate thereof sothat these carriers incline upwardly and outwardly from this pin anddiverge approximately equally, whereby the weight of the rolls andcarriers is partially available as acrushing' element, and the carrierstend to resist unequal horizontal dis placement, as their angularitywould cause a roll to move upwardly as well as inwardly, and thus tendto liftvthe top, roll and raise the ring in case of horizontal movementof the latter. This arrangement of carriers aids in positioning theparts in operation, and gives the maximum utilization-of their weightand action for crushingpurposes.

Thevcarriers of the upper roll are preferably pivoted approximatelyhorizontally radially of the'roll. The carriers at each side of therolls are preferably freely pivoted and removably mounted so that one oneither side may be detached for removing a roll, and as shown each roll.is 'rotatably mounted on its carriers preferably bybeing slipped over anaxle or shaft 1) which is fixed orxpinnedito the carriers to connectthem together through the roll, so that they will move uniformly, whichaxle carries a bearing lining 3? partially surrounding it and heldagainst rotation by a key or pin g on the lining engaginga seat orkeyway 1' on the axle to hold the lining at the pressure side thereof.The roll has a tubular hub or center fitting. over the lining 79 betweenthe carriers E, by which it is held in place axially, and leakage oflubricant at the ends of this hub is prevented by spring-pressedcupshaped washers s embracing-the end of the hub, revolving therewith,and pressed against the adjacent face of the carrier by springs t orotherwise to make a closure at this point to keep lubricant in and dustout.

Each axle D is preferably providedwith a longitudinal oil duct ucommunicating through the key or open projection g on the lining withthe interior of the roll for supplying lubricant thereto from a cup 1)outside of the casing,and with an outlet duct 10 for escape oflubricant'at the end of the a provide means at each side of the rolls sothat they may move in parallelism and to provide for equalizing pressureat each side, so that theiriaction may be uniform at each side of thedie. Preferably these holding means are intermediate of the carriers andsive, adjustable, and movable both axially and radially of the die, andare connected together'through the die to position and control them, andare collapsible to adjustv them or remove-the rolls from the die.

As shown, these means comprise a crushing spring S opposite andpivotallyconnected to each carrier, extending approxi mately radiallyinwardly and pivotally connected to a movable member intermediate of'andreceiving the reaction of the several springs for transmitting thepressure ofeachto the other or others. Preferably each oar- .actoutwardly against them, and areexpanrier is formed with a semi-sphericalsocket'm receiving the semispherical head of a spring carrier 'y whichis loosely pivoted'to it, and the spring S is disposedbetween thiscarrier and an adjustable spring nut? screwed on a bolt (1', which has asemi-spherical head pivotally mounted in a semi-spherical socket in themovable ca'rrier b7 and loosely con-' nected thereto, the" parts beingconstructed withabutting faces or shoulders on the principle ofa knucklejoint which engage to prevent them from swinging past the headcenteriin-one direction, but permi.ttheirrelative movement in the otherdirection for ad justment or collapsing. The spring S acts expansively,and its seat and :nut are con the thrust-members. To prevent turning,the

carriers 5 preferably :have forked projections 6 straddling the lowerextension p of the support Z, and having clearance enough to permit allnecessary movements of the spring carriers. Thethrust bar or screw dprojects through a clearance hole (1 in the bodily remove the internalparts from they cover so that it can adapt itself axially of the die toequalize the different-springs, and this hole is closed by a dust guardf sliding on the screw :and pressed outwardly by a spring 9 surroundingthe latter, .the cover 72/ being provided with this hole for the screw,and with a hole 2" opposite each roll axle.

' The cover A is preferably hinged to the support Z, and this support ispreferably an annular :member on the periphery of which the sheet metalcover y" of the casing P is clamped. The support Z has a tubular flangeZ against which the cover h closes,

and through which the rolls and carriersv may be removed or access tothe interior may be had. The support Z is preferably fixed to the base Aby its bolts I '(see'Fig. 3) either of which can be removed so that itcan be swung outwardly on the other as a pivot to ring,;and' it isslidingly mounted thereon so thatv by removing both bolts] it can beslid outwardly for this purpose, on freeing one or both of its pivotalbolts 1.

The feed hopper N is mounted :on the support Z, and the chute O passesthrough the front wall oi the support to the interior of the ring todirect feed thereon.

My invention provides for mounting check pieces at each side of anexteriorly supported or positively driven ring to limit size or mesh ofthe material'discharged therefrom. This is preferably accomplished I bysupporting these check pieces through the interior of the ring andmounting them preferably relatively yieldingly and collectively mov-ablytherein, so that they can yield to free material caught between them,and can move to adapt themselves to the movements of the ring. I preferto employ an annular check piece A at each side of the ring, and tosupport these by a slidingly mounted bar B carried by the support Zprojecting, through the ring and carrying each check piece. As shown,three bars 13 are used which traverse ears in the check pieces which arespaced apart on the bars in any suitable manner, as by apiece of pipeis, and yieldingly held thereagainst by springs m so that :the piecescan yield or can move to adapt themselves to conditions. In this mannerthe size of material escaping from the ring can be controlled, and thecheck pieces and their supports will be clear of the spokes of therevolving head Gr, and for some work the necessity for using an outsidescreen with a crusher will be avoided.

In operation, when the ring is driven the polls will revolve therewithby traction. illaterial flowing from the hopper and chute on to thedescending inner face of the ring will be crushed between this and theperiph-- cry of the roll, and forced oif the sides of the ring on to thecheck pieces, between which and the ring it will escape to the dischargeif fine enough to pass between them. It too coarse to escape, thematerial will return to the ring for further crushing" The ring willyield on its cushion carriers to adapt itsel i to the crushing shocks,and the rolls will yield against the crushing springs, which will resisttheir motion through reacting toward the other rolls. of the ring willbe more or less thrown on to the rolls, so that these wholly orpartially support it by adjusting its supporting springs as desired, andin such case this weight will be supported by the rolls, and thetendency of the ringto descend resisted by the divergently actingprovisions intermediate ot the rolls, which will transmit the inwardpressure of each to the other with. aforce that is countervailing in twoor more directions. Radial adjustment of the springs S to take up wearor increase pressure will be made with the spring nuts 2, or axialadjustment to vary pressure or to collapse the thrust members will bemade with the screw (Z, which when these members are adjusted to anyangularity inwardly of the dead center will act as a ffioati'ngcompression member intermediate of them, movable axially to equalizetheiraction at each side of the rolls, and when the parts are adjustedoutwardly until the springs are at angles to the axis, the knuckle jointconnections will prevent axial displacementvof the thrust .members andensure their maintaining The weight proper working positions for themaximum of thrust effect for which they are adjusted.

Itwill be seen that the rolls are movable passively as a group, andindividually, and that their expansive forces are equalizedintermediatenot their carriers and confined within the ring, so that allforcesiincident to the operation of these parts maybe =utilized forcrushing the material to be treated, and none will be lost bytransmission to fixed parts. 1

While I have described and shown my improvements as applied to a machinein which the ring is the driven member, it will be understood that theinvention is not limited to this type of machine, nor to the par-'ticular details of construction, arrangement and combination of partsset forth and shown as constituting its preferred form, since myimprovements can be used in whole or in partin connection with suchtypes of machines or according to such modifications or adaptations ascircumstances or the judgment of those skilled in the art may dictate,without departing from the spirit of the invention.

The support Z has rearward bifurcated inclined feet C extending beyondthe cen ter of gravity of the weight it carries and meeting similarforwardly extending feet D on the front support V, which together serveas the upper part of the outlet chute and to which the casing fastened.The bolts I traverse the feet C opposite the center of the die and areso disposed that the support can be swung on either bolt to open themill.

lVhat I claim is 1. In combination, an annular externally drivencrushing die having an internal crushing face, a movable and rotatablecrushing roll within and eccentric of said die and having a peripheralcriishing' face reciprocal to the inner face of said die, means forrevolving said die, and a sup port on which said roll is movably androtatably mounted comprising an outer supporting portion mountedexteriorly of said die and having a portion extending past one side ofsaid die affording an aperture at the side of said roll through whichthe latter can be passed and having projecting in wardly from andsustained by said outer portion a rigid inner roll supporting por-' tionwithin and extending through said die and movably and rotatablysustaining said roll within said die opposite said recess.

2. In combination, an annular crushing die having an internal crushingface, a movable and rotatable crushing roll within and eccentric to saiddie and having acrushing face reciprocal to that of the latter, meansfor revolving one of said parts, a movable carrier for said rollcomprising separable parts at each side thereof, and an axle carried bysaid parts and on which said roll is rotatably mounted, and a frame forsaid parts comprising a fixed supporting portion inwardly of said dieand intermediate of the I separable parts of said carrier and on whichthe latter is movably mounted, and having a recess opposite said rollthrough which the latter can be removed.

3. In combination, an annular crushing die having an internal crushingface, a movable and rotatable crushing roll withinand eccentric to saiddie and having a crushing face reciprocal 'to that of the latter, meansfor revolving one of said parts, a swinging carrier on which said rollis rotatablymounted, and a frame for said parts comprising a supportingportion disposed at one side of said die and affording a recess at theopposite side of said die and having a fixed pivotal provision extendingthrough said die and past said roll supporting and pivotally engagingsaid carrier. at each side thereof. i

l. In combination, an annular externally driven crushing die having aninternal crushing face, a rotatable crushing roll within and eccentricof said die "and 'havinga peripheral crushing face reciprocal to theinner face of said die, means for revolving said die, and a non-rotativesupport on which said roll is rotatably mounted having an outer portionmounted exteriorly of said die and extending past one side of said dieand having a stationary portion extending through said die and having astationary roll sustaining portion at the other side, of said die fromwhich said roll is rotatably sustained at that side of said die.'

In combination, an annular crushing die having an internal crushingface, two

orinore movable and rotatable crushing rolls within and eccentric tosaid die and each having a crushing face reciprocal to that of thelatter, means for revolving one of said parts, movable carriers onwhichsaid rolls are rotatably mounted respectively, thrust members oneach side of said rolls intermediate of said carriers for holding saidrolls outwardly away from one another to resist a crushing pressure fromthe inner face of said die, and a movable part passing through said dieand intermediate of said thrust members for adjusting them.

6. In combination, an annular externally driven crushing die having aninternal crushing face, a movable and rotatable crushing roll within andeccentric of said die and having a peripheral crushing face reciprocalto the inner face of said'die, means around and revolving past said rollfor revolving'said die, non-rotative movable means on which said roll isrotatably mounted,a support on which said non-rotative' means are mov'ably mounted exteriorlyof said die and havlng a portion extending pastone side thereof, andpressing means disposed at the opposite side ofsaid die and opposite and acting against said non-'rotat-ive means topress said roll outwardly toward the inner face of said die to resist acrushing pressure therefrom and sustained through said. die

from said supporting means at the other side thereof.

7. Incombination, an annular externally driven crushing die having aninternal crushing face, a movable and rotatable crushing roll within andeccentric of said die andhaving a peripheral crushing face reciprocal tothe inner face of said die,

means around and revolving past said roll for revolving said die,non-rotative movable means on which said roll is rotatably mounted, asupport on which said non-rotative means are movably mounted exteriorlyof said die andvhaving a portion extending past one: side thereof, andpressing means disposed inwardly of said non-rotative means at the otherside of said die and opposite and acting against said non-rotativemeansfor pressing said roll outwardly toward the inner face of said dieto resist a crushing pressure therefrom and connected to said supportingmeansthrough said die.

8'. In combination, an annular externally driven crushing die having; aninternal crushing face, two rotatable crushing rolls movable toward andfrom each other within and supported by and eccentric of said die andeach having a peripheral crushing face rec'proc-al. to the inner face ofsaid die, means around and revolving past said rolls for revolving saiddie, movable non-retative carriers on Which said rolls are rotatablymounted arespect-ively, a non-rotative support for said carriers onwhich said carriers are movably mounted respectively exterior-1y of saiddie and having a portion extending pastv one side of said die, andpressing means dis posed at the other side ofsaid die opposite andactingon, said non-.rotative means respectively to press said rollsoutwardly away from oneanother to resist a crushing pressure from theinner face of said die and sustained through the interior of said diefrom saidisup-porting means at the other side of said die.

9. In combination, an annular externally driven crushing die having aninternal crushing face, two rotatable crushing rolls movablet-oward andfrom eachother within and eccentric of said die and each having a,peripheral crushing face reciprocal to the inner face of said die, meansaround and revolving past, said rolls for revolving said die, movablenonrotative carriers at each sideof said die and on which said rolls arerotatably mounted respectively, a nonrotativesupport for said carrierson which said carriers are movably mounted respectively mountedexteriorly of said dieand having a portion extending past one side ofsaid die, and pressing means disposed at each side of said die oppositeand acting'ag-ainst said carriers at the opposite sides of said dierespectively to press said rolls outwardly away from one another toresist a crushing pressure'from the inner face of said die and sustainedthrough the interior of said die from said supporting means at one sideof said die.

10. In combination, an annular externally driven crushing die having aninternal crushing face, three rotatable crushing rolls movable towardand from each other within and eccentric of said die and each having aperipheral crushing face reciprocal to the inner face of said die, meansaround and revolving past said rolls for revolving said die, movablenon-rotative carriers on which said rolls are rotatably mountedrespectively, a:

non-rotative support for said carriers on which said carriers aremovably mounted respectively mounted exteriorly of said die and having aportlon extending past one sideof said die,and pressing meansdisposed atthe other side of said the opposite and acting against sald non-rotatlvecarriers respectively to press said rolls outwardly away from oneanother to resist a crushing pressure from the inner faceof said die andsustained through the interior of said diefrom said supporting means atthe other side of said die. 7

11. In combination, an externally driven crushing die having an internalcrushing face, a rotatable crushing roll within and eccentric of saiddie and having a peripheral crushing face reciprocal to the inner faceof said die, a support for said roll mounted eX- teriorly of said dieand having a portion extending past one side of said die and on whichsaid. roll is rotatably mounted, a revolving head rotatably mounted atthe other side of said die and connected to said die for revolving it,and a non-rotary cheek piece opposite and affording an outlet at andmounted at the side of said die remote from said head. i

12. In combination, an externally driven crushing face reciprocal to theinnerface of said die, a support'for said roll mounted exteriorly ofsaid die and having a portion extending past one side of said die and onwhich said roll is rotatably mounted, a revolving head rotatably mountedat the other side of said die and connected to said die for revolvingit, and non-rotary cheek pieces opposite and affording outlets from eachside of said die supported exteriorly of said die.

13. In combination, an externally driven crushing die havingv aninternal crushing face, a rotatable crushing roll Within and eccentricof said die and having a peripheral. crushing face reciprocal to theinner face of said die, a support for said roll mounted exteriorly ofsaid die and on whiehsaid: roll is rotatably mounted, a revolving; headro pieces opposite and affording outlets at the the interior of said dieand supported exteriorly of said die. I

14:. In combination, an annular crushing die revolving in anapproximately vertical plane and having an internal crushing face,

a movable and rotatable crushing roll within and eccentric of the upperpart of said die and having a peripheral crushing face reciprocal to theinner face of said die, means for revolving one of said parts,nonrotative movable means on which said roll is rotatably mounted,pressing radial means below and radially of the axis of said roll andopposite and acting radially against said non-rotative means to presssaid roll outwardly toward the inner face of said die to resist acrushing pressure therefrom, and transversely movable means sustainingsaid pressing means and movable transversely of the direction of stressof the latter.

15. In combination, an annular crushing die revolving in anapproximately vertical plane and having an internal crushing face, amovable androtatable crushing roll within and eccentric of the upperpart of said die and having a peripheral crushing face reciprocal to theinner face of said die, means for revolving one of said parts,non-rotative movable means on which said roll is rotatably mounted,pressing radial means below and radially of the axis of said roll andopposite and acting radially againstsa-id nonrotative'means to presssaid roll outwardly toward the inner face of said die to resist acrushing pressure therefrom, and non-rotative movable sustaining meanssustaining said pressing means and movable, in the direction of stressof the latter.

16. In combination, an annular crushing die revolving in anapproximately'vertical plane and having an internal crushing face, amovable and rotatable crushing roll within and eccentric of the upperpart of said die and having a peripheral crushing face reciprocal to theinner face of said die, means for revolving one of said parts,nonrotative movable means on which said roll is rotatably mounted,pivotally mounted holding means disposed radially of and below the axisof said roll and opposite and acting upwardly against said non-rotativemeans to hold said roll outwardly to resist a crushing pressure from theinner face of said die, and movable sustaining means below and pivotallysustaining said holding means.

17 In combination, an annular crushing die revolving in an approximatelyvertical plane and having an internal crushing face, a movable androtatable crushing roll within and eccentric of the upper part of saiddie and having a peripheral crushingxface reciprocal to the inner faceof said die,

means for revolving one of said parts, nonrotativemovable means on whichsaid roll is rotatably mounted, a pressing spring disposed below andradially of the axis of said roll and acting upwardly against saidDonrotative meansto hold said rollrtoward the inner face of said die toresista crushing pressure therefrom, and movable sustaining meansmovable transversely of and sustaining said spring. Y

18. In combination an annular crushing die revolving in an approximatelyvertical plane and having an internal crushing face, a movable androtatable crushing roll with,- in and eccentric of the upper partof'said die and having a peripheral crushing face reciprocal .to theinner face of said die,- means for revolving one of said parts,nonrotative movable means onv which said roll is rotatably mounted, apressing spring dis-, posed below and radially ofthe axis of said rolland acting upwardly against said non-- rotative means to hold said rolltoward the inner face of said die to resist a crushing pressuretherefrom, and pivoted movable sustaining means for said spring.

. 19. In combinatioman annular crushing die revolving in anapproximately vertical plane and having an internal crushing face, amovable and rotatable crushing roll with"- in and eccentric of theupperpart of said die and having a peripheral crushing face reciprocalto the inner face of said die, means for revolving one of said parts,non-rotative movable means on which said roll is rotatably mounted,adjustable 'holdingmeans below and adjustable radially outwardly'relativelyto the axis of said roll and opposite and acting against saidnon-rotative means to hold said "roll outwardly toward-the inner face"of said die to resist a crushing pressure therefrom, and movablesustaining means for said adjustable means.

2O. In combination, an annular crushing] die revolving in anapproximately vertical plane and having an internal crushing face, twomovable and rotatable crushing rolls, within and eccentric of said dieand each having a peripheral crushing face reciprocal to the inner faceof said die, means for revolving one'of Said parts, non-rotative movablemeans on which said rolls are rotatably mounted respectively, movableholding means disposed inwardly of the axes of said rolls respectivelyand opposite and acting radially outwardly toward said non-rotativemeans respectively to hold said rolls outwardly away from one another toresist a crushing pressure from the inner face of said die, and movablesustaining means intermediate of and sustained by and sustaining two ofsaid holding means.

21. In combination, an annular crushing die revolving in anapproximately vertical ill) two movable and rotatable crushing rollswithin and eccentric of said die and each having a peripheral crushingface reciprocal to the inner face of said die, means for re v'olving oneof said parts, non-rotative movable means on which said rolls are'rot'atably mounted respectively, movable holding means disposedinwardly of the-axes of said rolls respectively and oppositeandac'tin'gradially outwardly toward said non-rotative meansrespectively to hold said rolls outwardly away from' one another toresist a crushing pressure from the inner face of said'die, andyieldingly mounted sustaining means intermediate of and yieldingl'y'sustained by and sustaining two of said holdmg meansand'transmittingt'hestressof one to another.

'- wardly and outwardly against saidmovable non-rotative meansrespectively to hold said lower rolls outwardly away from one another toresist a crushing pressure from the inner face of said die, and movablesustaining means inwardly of and receiving the stress of two of saldholding means and transmitting the inward stress of one to an other. g

23. In combination, a revolving annular crushing die having an internalcrushinnl face, three rotatable crushing rolls'movable toward and fromeach other'within and eccentric of said die and each having" aperiphsaidnon-rotative means respectively for holding said rollsvoutwardly towardthe inner face of said die to resist a crushing pressure therefrom,movable transversely of their direction of stress of retire of saidrolls, and transversely movable sustaining means for said holding meansrespectively movable transversely thereof for moving them, and means formoving said transversely movable means transversely of such direction. v

24. In combination, an annular crushing the having aninternal crushingface. a movable and rotatable crushing roll within and eccentric of saiddie and having a peripheral crushing face reciprocal to the inner faceof said die, means for revolving one of said parts, movable means onwhich said roll is rotatably mounted, swinging holding means acting onsaid movable means for holding said roll outwardly toward the inner faceof said die to resist a crushing pressure therefrom, movable adjustingmeans swingingly engaging said holding means and movable transversely ofthe stress thereof, and interengaging faces on said holding means andone of said parts affording abutting stops for limiting swinging motionof said holdmg means. a

In witness whereof, I' have hereunto signed my name in the presence oftwo subscribing witnesses.

GEORGE H; FRASER.

